@beeyou had told me about this tool where you can see how often you engaged with someone - I forgot which it was - I used that to compare my followers list with the engagement between myself and a certain follower.
I guess I just have to accept that there is no ‘quick fix’ and that I will have to schedule some time to do it. Better now than when I’m following 3000 people instead of 300, I guess... :0)